fix: Fix product page syntax errors

1. Remove duplicate/broken code in product tables section
2. Fix PostCSS config for Tailwind 4
3. Add @tailwindcss/postcss dependency
4. Remove --production flag from Dockerfile (sharp required)

All fixes enable successful Docker build with favicon working.

node_modules/astro/dist/runtime/server/render/csp.js

@@ -0,0 +1,35 @@
+function renderCspContent(result) {
+  const finalScriptHashes = /* @__PURE__ */ new Set();
+  const finalStyleHashes = /* @__PURE__ */ new Set();
+  for (const scriptHash of result.scriptHashes) {
+    finalScriptHashes.add(`'${scriptHash}'`);
+  }
+  for (const styleHash of result.styleHashes) {
+    finalStyleHashes.add(`'${styleHash}'`);
+  }
+  for (const styleHash of result._metadata.extraStyleHashes) {
+    finalStyleHashes.add(`'${styleHash}'`);
+  }
+  for (const scriptHash of result._metadata.extraScriptHashes) {
+    finalScriptHashes.add(`'${scriptHash}'`);
+  }
+  let directives;
+  if (result.directives.length > 0) {
+    directives = result.directives.join(";") + ";";
+  }
+  let scriptResources = "'self'";
+  if (result.scriptResources.length > 0) {
+    scriptResources = result.scriptResources.map((r) => `${r}`).join(" ");
+  }
+  let styleResources = "'self'";
+  if (result.styleResources.length > 0) {
+    styleResources = result.styleResources.map((r) => `${r}`).join(" ");
+  }
+  const strictDynamic = result.isStrictDynamic ? ` 'strict-dynamic'` : "";
+  const scriptSrc = `script-src ${scriptResources} ${Array.from(finalScriptHashes).join(" ")}${strictDynamic};`;
+  const styleSrc = `style-src ${styleResources} ${Array.from(finalStyleHashes).join(" ")};`;
+  return [directives, scriptSrc, styleSrc].filter(Boolean).join(" ");
+}
+export {
+  renderCspContent
+};